Finding the Fourth Proportional to 13,725,921.36, 18,941,595.48 and 7,446,356.40
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Solution
The fourth proportional to 13,725,921.36, 18,941,595.48 and 7,446,356.40 is: 10,275,876.35
Step by Step Solution
- Step 1: Write the proportion equation
13,725,921.36 : 18,941,595.48 = 7,446,356.40 : x - Step 2: Convert to fraction form
13,725,921.36/18,941,595.48 = 7,446,356.40/x - Step 3: Cross multiply
13,725,921.36x = 18,941,595.48 × 7,446,356.40 - Step 4: Simplify right side
13,725,921.36x = 141,045,870,728,709.09 - Step 5: Solve for x
x = 141,045,870,728,709.09/13,725,921.36 - Step 6: Final answer
x = 10,275,876.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.